Cover of a trigger dispenser device



1.1 is a front perspective view of the cover of a trigger dispenser device;

1.2 is a left view thereof;

1.3 is a right view thereof;

1.4 is a front view thereof;

1.5 is a rear view thereof;

1.6 is a top view thereof; and

1.7 is a bottom view thereof.

The portions of the “cover of a trigger dispenser” shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a cover of a trigger dispenser device, as shown and described. 